USPTO Patents Application 10002369

Abstract

An optimal stiffness matching structure of planar bearing and axis of a rotary
mechanism comprises a planar bearing and an axis. Mechanical characteristics
of different materials are made use of to match the planar bearing and the axis.
The planar bearing is made of one of metal alloy and ceramic, while the axis is
made of the other one of metal alloy and ceramic. Mechanical characteristics of
different materials are matched to effectively eliminate surface scratches on the
slide face caused by intrusion of minute particles. Moreover, the planar bearing
and the axis of different stiffness are matched to have second polishing function,
letting the surface of the slide face having smaller stiffness have a roughness
inversely proportional to time. Therefore, the time of operation of the slide face
is effectively lengthened, the time of operation is greatly increased, and
high-frequency noise owing to roughness is much reduced.